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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Hum Factors. 2019 Jul 30;62(2):229–248. doi: 10.1177/0018720819864510

Table 5.

Proportion of Drive Spent within Alert Range

System Alert Type Percentage of Drive Active
LDW No Alert 84.0%
Visual 15.8%
Auditory 0.21%
FCW No Alert 99.8%
Visual 0.16%
Auditory 0.02%

Percentages reflect the amount of time drivers across all conditions were within the range to receive LDW and FCW alerts.